1. Pengenalan
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the QLYUEUI SU300 series Variable Frequency Drive (VFD). Please read this manual thoroughly before using the product to ensure proper handling and to prevent potential hazards or damage.
The SU300 VFD is designed to control the speed of three-phase AC induction motors, offering precise control, energy savings, and improved system performance. This manual covers models ranging from 0.75KW to 5.5KW, with both 220V and 380V input options.
2. Arahan Keselamatan
AMARAN: Improper installation or operation can lead to serious injury or death. Only qualified personnel should install, operate, and maintain this equipment.
- Always disconnect power before performing any wiring, maintenance, or inspection. Wait at least 5 minutes after disconnecting power for capacitors to discharge.
- Ensure proper grounding of the VFD and the motor.
- Do not touch internal components or circuit boards while power is applied or immediately after power is removed.
- Install the VFD in a clean, dry, and well-ventilated environment, away from direct sunlight, corrosive gases, flammable materials, and excessive vibration.
- Sahkan bahawa input voltage matches the VFD's rated input voltage.
- Gunakan peralatan pelindung diri (PPE) yang sesuai semasa bekerja dengan peralatan elektrik.
3. Produk Lebihview
The QLYUEUI SU300 VFD features a compact design with an integrated control panel for easy operation and monitoring. Key components include the display, control buttons, and terminal blocks for power and control wiring.

3.1 Fungsi Panel Kawalan
- JALANKAN: Memulakan motor.
- BERHENTI/SET SEMULA: Stops the motor or resets fault conditions.
- PRG (Program): Enters or exits parameter setting mode.
- M-FUN (Multi-Function): Accesses multi-function parameters.
- SHIFT: Shifts digits during parameter setting or displays different parameters.
- MASUK: Confirms parameter settings.
- Anak panah atas/bawah: Adjusts frequency, navigates menus, or changes parameter values.
4. Spesifikasi
The following table outlines the general specifications for the QLYUEUI SU300 series VFD. Specific parameters may vary by model variant.

| Parameter | Nilai |
|---|---|
| Siri Model | SU300 |
| Julat Kuasa | 0.75KW - 5.5KW |
| Input Voltage Pilihan | AC220V (1-Phase or 3-Phase), AC380V (3-Phase) |
| Keluaran Voltage | 3-Phase, matches input voltage |
| Frequency Range Output | 0 - 400 Hz |
| Output Current (2.2KW 380V model) | 5.8A |
| General Output Current Range | 4 - 13A (varies by model) |
| Kaedah Kawalan | V/F Control, Vector Control |
| Ciri-ciri Perlindungan | Arus lebih, Overvoltage, Undervoltage, Overheat, Overload, etc. |
| External Dimensions (2.2KW 380V model) | 142mm (H) x 85mm (W) x 116.35mm (D) |
| Gross Weight (2.2KW 380V model) | lebih kurang 1 kg |

5. Persediaan
5.1 Pemasangan
The VFD should be mounted vertically on a stable, non-flammable surface, ensuring adequate clearance for ventilation. Maintain sufficient space around the unit for heat dissipation and ease of access for wiring and maintenance.

5.2 Pendawaian
All wiring must comply with local electrical codes and regulations. Use appropriate wire gauges for power and control circuits.
5.2.1 Pendawaian Kuasa
- Input Power (R, S, T or L1, L2, L3): Connect the main AC power supply to these terminals. Ensure correct phase sequence for 3-phase inputs.
- Tanah (PE): Connect the protective earth ground to the designated ground terminal.
- Motor Output (U, V, W): Connect the three-phase motor leads to these terminals. Do not connect the motor's ground to these terminals.
5.2.2 Pendawaian Kawalan
The VFD provides various control terminals for external control signals, such as start/stop commands, speed reference (analog input), and fault outputs. Refer to the detailed wiring diagram in the full product manual for specific terminal assignments and functions.
6. Arahan Operasi
6.1 Kuasa Permulaan
- After completing all wiring and safety checks, apply power to the VFD.
- The display will light up, typically showing the current output frequency or a default parameter.
6.2 Basic Operation (Keypad Control)
- Tetapkan Kekerapan: Gunakan Up dan Bawah arrow keys to adjust the desired output frequency.
- Mulakan Motor: Tekan ke LARI button. The motor will accelerate to the set frequency.
- Berhenti Motor: Tekan ke BERHENTI / RESET butang. Motor akan memecut dan berhenti.
6.3 Tetapan Parameter
The VFD has numerous parameters to configure its operation. Refer to the comprehensive parameter list in the full product manual for detailed descriptions and adjustment procedures.
- Tekan PRG to enter parameter setting mode.
- guna Up dan Bawah arrows to navigate through parameter groups and individual parameters.
- Tekan MASUK to select a parameter and view its current value.
- guna Up dan Bawah arrows to change the value. Use SHIFT untuk bergerak antara digit.
- Tekan MASUK untuk menyimpan nilai baru.
- Tekan PRG to exit parameter setting mode.
7. Penyelenggaraan
Regular maintenance ensures the longevity and reliable operation of your VFD.
- Pembersihan: Periodically clean the VFD's exterior and cooling fins to prevent dust accumulation, which can hinder heat dissipation. Use a soft, dry cloth or compressed air. Ensure power is disconnected before cleaning.
- Pemeriksaan: Regularly check for loose connections, damaged wiring, or unusual noises/vibrations.
- Persekitaran: Pastikan persekitaran operasi kekal dalam julat suhu dan kelembapan yang ditetapkan.
8. Penyelesaian masalah
This section provides solutions for common issues. For complex problems, contact technical support.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| VFD tidak dihidupkan | No input power; Blown fuse; Incorrect wiring | Check power supply; Inspect fuses; Verify wiring connections. |
| Motor tidak berjalan | VFD in stop mode; Fault condition; Incorrect frequency setting; Motor wiring issue | Press RUN; Check for fault codes and reset; Adjust frequency; Verify motor wiring. |
| Overcurrent fault (OC) | Motor overload; Short circuit in motor wiring; Rapid acceleration/deceleration | Reduce motor load; Check motor and wiring for shorts; Increase acceleration/deceleration times. |
| Overvoltage fault (OV) | Volt masukan tinggitage; Rapid deceleration with high inertia load | Semak input voltage; Increase deceleration time; Consider adding a braking resistor if applicable. |
| Undervoltage fault (UV) | vol input rendahtage; Momentary power loss | Semak input voltage; Ensure stable power supply. |
9. Waranti dan Sokongan
For warranty information, please refer to the purchase documentation or contact your vendor. Technical support is available through the manufacturer or authorized distributors. Please have your product model and serial number ready when contacting support.
For further assistance, visit the QLYUEUI official webtapak atau hubungi perkhidmatan pelanggan.